Earth Sciences

How much asteroid materials falls to earth?


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2009-03-24 12:18:09
2009-03-24 12:18:09

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Yes. Earth is much larger tha even the largest asteroid.

The chances of an asteroid from the asteroid belt hitting Earth are very close to zero. The chances of a so-called "near Earth asteroid" hitting Earth are much higher... in fact, they hit Earth all the time, and are seen as meteors ("shooting stars").

Not much should usually happen, though it might depend on the size of the asteroid. The real danger is for the asteroid to actually hit Earth.

No. Asteroids are much smaller than Earth.

How much precipitation falls to the earth in a typical year

The asteroid belt is not a single object. You would have to assess the gravity on each asteroid individually.

Asteroids are much smaller than Earth.

No. The asteroid has passed, having missed Earth by about 17,000 miles. That's fairly close, but scientists new it would miss by about that much.

How much does an asteroid weigh

depending on the size it could destroy the planet or impact in the water and not do much. It all depends on the size of said asteroid!

An object from Earth would have the same mass, but a much smaller weight on an asteroid. Weight depends on gravity, but mass doesn't.

Not just like that, it'll prefer to keep moving in its established track. It'd pretty much have to bump into another asteroid to change orbit radically.

The Sun has a much larger gravitational pull , an asteroid would be pulled faster toward the sun, if it were in the same proximity.

Not quite sure what you mean with hang from it; the asteroid would attract the building (much less so than Earth does, but still), so the asteroid would be "downward" for anybody close to the asteroid.In principle there is no reason why you couldn't build something on an asteroid, but that would not "hang... from the asteroid".

It would probably destroy all life as we know it. A much, much smaller asteroid caused the extinction of the dynosaurs, 65 million years ago.

Most asteroids are located in the asteroid belt, which is so far away from the Earththat they do not experience any measurable gravitational pull from Earth. If anasteroid approaches the Earth, however, then it will experience quite a substantialgravitational pull. Asteroids can weigh thousands or even millions of tons.====================================Answer #2:There can never be any single answer to that question. Just like any otherobject, of course, the gravitational force between the Earth and an asteroiddepends on the mass of the asteroid, and on how far it happens to be fromEarth at the moment.Here is a sample, 'back-of-the-bar-napkin' calculation:-- Assume that the asteroid has a mass that would weigh 1 million tons on Earth.-- Assume that the asteroid is only 10,000 miles outside the orbit of Mars.So, as the Earth and the asteroid both go round and round the sun in theirrespective paths, the closest they can ever get to one another is about33.9 million miles.-- When the asteroid is on the surface of the Earth ... 3,959 miles from the center weighs 1 million tons. Its weight when it's 33.9 million miles away is just 1 million tonstimes the square of the inverse ratio of those distances.(1 million tons) x ( 3,959/33.9 million)2 = 18.35 tonsThat's the Earth's pull on the asteroid, and the asteroid's pull on the Earth,when they're as close together as they can ever be.Mars, being so much closer, and Jupiter, being so much more massive than theEarth, have that much greater gravitational interaction with the asteroid, andpotentially big effects on the shape of its orbit. The problem with that is thatthey may nudge the asteroid into an orbit with a shape that could eventuallycoincide with where the Earth is that day, and could wipe out the remainingdinosaurs.

My mass is always the same, no matter where I am or what I am doing. My weight, however, depends on other masses in my environment. You have said that the asteroid is much smaller than Earth, but you haven't said a thing about its mass, which is roughly just as important as its size. Most likely, I weigh much less there than I do on Earth, but I can't guarantee that. If the asteroid has enough mass packed into that slender body, I could easily wind up weighing more there than on Earth.

average of 40 tons per day of extraterrestrial material falls to the Earth

Earth gravity powers anything that falls, doing work on it equal to its weight multiplied by the distance it falls, and giving it that much kinetic energy.

Millions if not billions of years ago asteroids helped create the planets that are in our solar system today. The Earth probably could handle larger moons however our moon was a single large asteroid that struck the Earth. The Earth then took the asteroid as its satellite.

The asteroid belt as a whole is spread over a huge space, much bigger than the earth, yet its mass is only around 3.0×1021 to 3.6×1021 kilograms, which is just 4% of the Moons mass. The biggest asteroid is a dwarf planet called Ceres, which is about 974km in diameter.

There are multiple theories for the material in the asteroid belt. First, note that the entire mass of the asteroid belt objects is a few percent of Earth's mass -- what is there today would not form much of a planet. One fairly good theory is that a planet did have an irregular orbit with the highest part where the asteroid belt is today. However, the planet's highly elliptical orbit brought it across the orbits of Mars and Earth. It collided with Earth, leaving much of its mass in the Earth but also spewing out material that eventually formed our Moon. A small portion of the material survives in the asteroid belt and as the small moons of Mars.

The estimated amount of cosmic dust and meteorites that falls on Earth varies everyday. The estimated range however is from 5 to 300 metric tons.

No. Uranus is much larger than any asteroid.

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